How To Fix WGDS_PROCESS081 - Alt_unit is initial and alt_unit_iso is initial.

SAP Error Message - Details

• Message type: E = Error

• Message class: WGDS_PROCESS - Global data synchronisation

• Message number: 081

• Message text: Alt_unit is initial and alt_unit_iso is initial.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WGDS_PROCESS081 - Alt_unit is initial and alt_unit_iso is initial. ?

  The SAP error message:
  WGDS_PROCESS081: Alt_unit is initial and alt_unit_iso is initial
  typically occurs in the context of handling units (HUs) in Warehouse Management (WM) or Extended Warehouse Management (EWM) processes, especially during packing, unpacking, or handling unit processing.
  
  Cause
  
  The error indicates that both the alternative unit (alt_unit) and the alternative unit ISO code (alt_unit_iso) fields are empty (initial).
  This situation arises when the system expects an alternative unit of measure (UoM) for a handling unit or material but does not find any value.
  It usually happens during packing or HU processing when the system tries to convert or validate quantities in an alternative unit but the relevant data is missing.
  Possible reasons:
  
  The material master does not have an alternative unit of measure maintained.
  The packing instruction or handling unit type expects an alternative unit but it is not defined.
  Custom code or user exit is trying to process alternative units but the data is not provided.
  Data inconsistency or missing configuration in unit of measure settings.
  
  
  
  
  Solution
  
  
  Check Material Master Data:
  
  Go to transaction MM03 and check the material's units of measure.
  Verify if an alternative unit of measure is maintained under the Additional Data tab or in the Units of Measure view.
  If missing, maintain the alternative unit of measure as required.
  
  
  
  Check Handling Unit Type and Packing Instructions:
  
  Verify if the handling unit type or packing instructions expect an alternative unit.
  Adjust the configuration to either provide the alternative unit or remove the requirement.
  
  
  
  Review Custom Code/User Exits:
  
  If custom enhancements or user exits are involved in HU processing, check if they handle alternative units properly.
  Ensure that the code does not leave alt_unit and alt_unit_iso empty when they are expected.
  
  
  
  Data Consistency:
  
  Run consistency checks on handling units and related master data.
  Use transaction LS24 or HU02 to inspect handling units and their units of measure.
  
  
  
  SAP Notes and Support:
  
  Check for relevant SAP Notes that address this error message.
  Sometimes, patches or corrections are available if this is a known issue.
  
  
  
  
  Related Information
  
  Message Class: WGDS_PROCESS
  Context: Handling Unit Management, Warehouse Management, EWM
  Transactions to check:
  
  MM03 - Display Material Master
  HU02 - Change Handling Unit
  LS24 - Display Stock on Handling Unit
  SPRO - Configuration for Handling Units and Packing Instructions
  
  
  SAP Help: Look for documentation on Handling Unit Management and Units of Measure.
  SAP Notes: Search SAP Support Portal with the message number or keywords like "Alt_unit is initial".
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing alternative unit of measure (alt_unit) and its ISO code (alt_unit_iso) in HU processing.
  
  
  Solution
  Maintain alternative unit in material master or handling unit configuration; check custom code; ensure data consistency.
  
  
  Related Info
  Handling Unit Management, WM/EWM, material master units of measure, packing instructions.
  
  
  
  
  If you provide more context (e.g., transaction, process step, or custom developments involved), I can help tailor the solution further.