SAP Backflush Questions

[former_member287204]

Hi Experts,

My questions are related to the following links -

http://scn.sap.com/thread/1183139

http://help.sap.com/erp2005_ehp_04/helpdata/EN/92/91a812a9d511d189090000e8323492/frameset.htm

http://scn.sap.com/community/erp/manufacturing-pp/blog/2014/03/04/the-backflush-logic--basics

http://scn.sap.com/community/erp/manufacturing-pp/blog/2013/12/30/backflush-and-its-priority-in-use

http://www.tcodesearch.com/tcodes/search?q=backflush

By going through the above links, I basically have some concept on the Backflush operations, but would like to check some more questinos as below -

Q1) By using the Backflush, does it mean that we can skip the Goods issues to Production actions using MB1A (MT 261-262) ? Should we just post the actually consumed Materials during Production Order confirmation (MT 261) ? Should we use CO11 or CO15 for the Production Order confirmation ?

Q2) When executing the Production Order confirmation for both GR for Finished Good (MT 101) and GI for Raw Materials (MT 261), is it possible to post to seperate GL accounts for the Finished Good and Raw Materials respectively ?

Q3) After executing the Production Order confirmation, is it the same for the subsequent processes, i.e. KKAX, CO88 and CO02 (close Production Order) ?

Many Thanks,

KH Fong

[kiran_kumar179 · Accepted solution]

Q1) By using the Backflush, does it mean that we can skip the Goods issues to Production actions using MB1A (MT 261-262) ? Should we just post the actually consumed Materials during Production Order confirmation (MT 261) ? Should we use CO11 or CO15 for the Production Order confirmation ?

Once Back flush is activated you need not to perform manual GI as components gets issued to production order automatically during order confirmation based on component allocation to the operations in CO11N or CO15.

When executing the Production Order confirmation for both GR for Finished Good (MT 101) and GI for Raw Materials (MT 261), is it possible to post to separate GL accounts for the Finished Good and Raw Materials respectively ?

It is based on the Valuation class you assigned for different materials and OBYC settings GL accounts gets triggered.

Q3) After executing the Production Order confirmation, is it the same for the subsequent processes, i.e. KKAX, CO88 and CO02 (close Production Order) ?

Yes.

BR
KK

[former_member287204 · Accepted solution]

Dear Experts,

Thanks for your answers. Would like to ask more detailed on Q1-Q2 as below -

Q1) During Order confirmation in CO11N or CO15, can we input negative / revoked value for the Finished Good (e.g MT 102) or Components (e.g. MT 262) ? If we are used to transferring some of the Components from one SL to another SL within a Plant (MT 311), or transferring some of the Components from Consignment Stock to our own Stock (MT 411K - 411), should we still need to execute MB1B BEFORE executing the Order confirmation ?

Q2) If the Valuation class is different between the Finished Good and the Components, does it mean that there will be more than one Material docs. (with Accounting docs.) generated AFTER executing the Order confirmation in CO11N or CO15 ?

Many Thanks,

KH Fong

[Former Member · Accepted solution]

Hi,

Stock must be there in the respective location from where backflush is happening, so you need to bring the stock into that location.

one Material document will be genetared, again it depends based on the confirmation of operations and assignment of components to the operations.GL accounts will be seperate based on the material type.

Regards,

Ravi

[Former Member · Accepted solution]

Hi Fong,

Yes, MB1B is required for trsnferring the stock between the SLOC or from consignment to unrestricted stock. This could not be clubbed with either of confirmation (Operation and order), as while doing confirmation, system will have information that from which SLOC the component needs to be consumed, this could either come from BOM or from Material Master.

Material document will be single, if the components are defaulted for backflush and the GR and GI is happening simultaneously through any of the confirmation transaction.

Regards,

Chinna

[former_member287204 · Accepted solution]

Dear Experts,

Thanks for your answers again. Some more related questions as below -

Q1) According to Chinna, "as while doing confirmation, system will have information that from which SLOC the component needs to be consumed, this could either come from BOM or from Material Master.", if we would like to manually input some additional items to record components' reversal (MT 262), line scrap (customised MT 981) & line lost (customised MT 971), is it possible to input in Order confirmation of CO11N & CO15 ?

Q4) Found many T-Codes under the the following link are related to the Backflush operations. Except the CO14, all other transactions under this link are strange for me so could you advise when is appropriate to execute these T-Codes ?

http://www.tcodesearch.com/tcodes/search?q=backflush

Many Thanks,

KH Fong

[kiran_kumar179 · Accepted solution]

Q1) According to Chinna, "as while doing confirmation, system will have information that from which SLOC the component needs to be consumed, this could either come from BOM or from Material Master.", if we would like to manually input some additional items to record components' reversal (MT 262), line scrap (customised MT 981) & line lost (customised MT 971), is it possible to input in Order confirmation of CO11N & CO15 

You can add components manually during confirmation in goods movement tab which will get posted along with other components and shown in documented goods movement screen.

Just test and let us know if you have any specific issue.

Q4) Found many T-Codes under the the following link are related to the Back flush operations. Except the CO14, all other transactions under this link are strange for me so could you advise when is appropriate to execute these T-Codes ?

Most of the transactions in your given link are related to Repetitive manufacturing if you are in discrete manufacturing scenario use CO11n for operation wise confirmation or CO15 for collective confirmation.

BR
KK

[former_member287204 · Accepted solution]

Dear kiran kumar,

Thanks for your reply.

Some more query on Q1, in the "Movement" section of Order confirmation in CO11N or CO15, found that I could not select some customised Movement Types (e.g. 961-962), could you advise how to setup to enable and then select these MT(s) ?

For the Q4, could you explain what is mean by the Repetitive manufacturing ? Is it a special process ?

Many Thanks,

KH Fong

[kiran_kumar179 · Accepted solution]

Q1, in the "Movement" section of Order confirmation in CO11N or CO15, found that I could not select some customised Movement Types (e.g. 961-962), could you advise how to setup to enable and then select these MT(s) ?

In OMJJ settings for your movement type check whether in allowed transactions you have entered CO15 and CO11n.

Check with your MM consultant he may help you on this.

Q4, could you explain what is mean by the Repetitive manufacturing ? Is it a special process ?

Repetitive manufacturing is mainly used for the production scenarios with high product stability, high repetition rates, and low product complexity.

Search in this forum there many threads which explains about this Functionality and Process steps

Refer this document for some help

BR
KK

[former_member287204 · Accepted solution]

Dear KK / Experts,

Thanks for your reply and info.

Q1) However, in OMJJ, already have allowed transactions (i.e. CO11N & CO15) for our customised MT. Could you also advise where can be checked to solve this problem ?

Also, as previously advised by one expert, executing MB1A will find error like "No selected items" if the compenents were marked "Backflush" in Production Order, my another question is that is it possible to lock the reserved components' Qty for the Production Order for fear that the reserved Qty would be moved away / issued from the Storage Location BEFORE executing the Order confirmation using CO11N or CO15 ?

Many Thanks,

KH Fong

[kiran_kumar179 · Accepted solution]

KH Fong,

Are you getting any error if you enter your customized movement types in CO11n or CO15 for manually added components?

As far as Reserved quantity for any production order should not be available for other new orders means you need to check the ATP control settings for in OPJJ for your checking rule where ensure Include Reservations check box is selected.

BR
KK

[former_member287204 · Accepted solution]

Dear KK / Experts,

Q1) I just could not select this customised MT (e.g. 961) in CO15 (as screen below). Regarding the OPJJ, we are used to selecting the "02 - Individ.requirements" under "MRP 3" tab of Material Master but found that many Checking Rules were assigned to this Checking Group "02 - Individ.requirements" (as screen below). Could you advise which "Checking Rule" is actually applied for the Checking Group "02" ? Besides controlling the "GI for Order (MT 261)", is this setting also able to control other GIs, e.g. "GI for Cost Ctr (MT 201)" and STK transfers (e.g. MT 311) ?

Also tested to randomly mark two items as "Backflush" in Production Order and then executed MB1A with partial Qty for these two items (MT 261) but it could be posted. In addition, the posted partial Qty could not be counted in the Production Order as "Quantity withdrawn" and in the relevant Reservation.

Another test was STR transfer within plant (MT 311) using MB1B AFTER "Backflush" was marked in Production Order item(s). It could also be posted.

Therefore, I really don't know how to prevent the STK Qty of Production Order "Backflush" items from being withdrawn incorrectly through MB1A / MB1B. Could you advise in details ?

Below is the relevent screens for your ref.

CO15 - Movement section

OPJJ

Many Thanks,

KH Fong

[former_member209265]

Hi,

Q1)All are yes. backflush in Auto GI.No manual action is required.

Q2)Yes, it is possible, configuration needs to be there.

Q3) GR has to happen (If it is not AUTO GR)

Hope success.

Regards,

Krishnendu.

[Former Member]

Hi,

Q1: Backfluch activation no need to do MB1A,   if you try to do MB1A system will say that no items available so system will not allow you to do MB1A if materials are backflushed., while doing confimation in CO11n 0r CO15 materials will get into Goods movement view automatically.

Q2: Every material have valuation class assigned in the material master like for raw materials one valuation type will be there, for FERT materials another valuation type will be there, so system will automatically post into seperate GL accounts, you no need to worry regarding this as valuation class is assigned in material master.

Q3:No changes in the production cycle even if you activate Backflush, WIP, Varience and settlement need to carry out.

I hope it will help u

Regards,

Ravi