[SAP EWM] Error /SCWM/GM034 comes during GI reversal

 Issue :

Product has been posted goods issue (GI) from HU AAAA on storage bin BBBB. The GI reversal is stuck by error:

/SCWM/GM034: You can only post to bin BBBB using a handling unit

Root Cause :

• During GI cancellation the system tries to post the stock back into the same HU (which has been deleted in the meantime). If this HU no longer exists, it will try to post as unpacked stock to the same bin. However, this can be prevented by error /SCWM/GM034 in case of HUs are obligatory in that storage type and the GI happened by a product warehouse task (WT).
• Consider also it is not possible to cancel the goods movement and post the stock to a different HU.

Solution Approach :

In case the GI posting was done by a HU WT, then system re-creates automatically the HU posted for GI.

In case the GI posting was done by a product WT there are two options:

Option A)
Change the storage type settings regarding HU requirement to value ' ' (HU allowed but not a requirement) and re-try the reverse GI posting. It can be done in the customizing via transaction SPRO - SCM Extended Warehouse Management - Master Data - Define Storage Type - field "HU Requirement".

Option B)
Re-create manually the HU AAAA on bin BBBB as an empty HU. When you re-create the GI posted HU as an empty one, pay attention to enter the desired HU number in the HU field, otherwise the number will come from the number range. Then the posting will work as expected.

In case of you have huge number of HUs in GI warehouse tasks. The only option to reverse this ADGI GI posting is to upload the stocks again via /SCWM/ISU. Please create a CSV file for the upload based on the content of GI WT. You have to add one extra line per HU with the packaging material of the HU, so that the HU can be recreated.