How To Fix WSTI_MLT_INV_DOC003 - The quantity unit of &1 is not maintained for the material &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: WSTI_MLT_INV_DOC - Message object for WSTI_MLT_INV_DOC

• Message number: 003

• Message text: The quantity unit of &1 is not maintained for the material &2.

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 WSTI_MLT_INV_DOC003 - The quantity unit of &1 is not maintained for the material &2. ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WSTI_MLT_INV_DOC003
  
  Text: The quantity unit of &1 is not maintained for the material &2.
  
  Cause:
  This error occurs because the unit of measure (UoM) specified in the transaction or document for a particular material is not maintained or defined in the material master data. In other words, the system expects the quantity to be entered in a unit of measure that is valid and assigned to the material, but the unit provided is missing or incorrect.
  For example, if you try to post a goods movement or create a delivery with a unit of measure that is not assigned to the material, SAP will throw this error.
  
  Explanation:
  
  Each material in SAP has a base unit of measure and can have additional units of measure maintained in the material master (e.g., sales unit, purchase unit, alternative units).
  When a transaction involves a quantity, the unit must be one of the units maintained for that material.
  If the unit is missing or not maintained, the system cannot process the quantity correctly.
  
  
  Solution:
  
  
  Check the Material Master:
  
  Go to transaction MM03 (Display Material).
  Enter the material number (&2 in the message).
  Navigate to the Units of Measure tab.
  Verify if the unit of measure (&1 in the message) is maintained.
  
  
  
  Maintain the Unit of Measure:
  
  If the unit is missing, maintain it in the material master using transaction MM02 (Change Material).
  Add the required unit of measure under the Units of Measure section.
  Save the changes.
  
  
  
  Check the Document or Transaction:
  
  Verify the unit of measure entered in the transaction or document.
  Ensure it matches one of the units maintained in the material master.
  
  
  
  Additional Checks:
  
  If the unit is maintained but still the error occurs, check for any custom validations or user exits that might restrict units.
  Check if the unit of measure is valid in the context of the transaction (e.g., sales order, purchase order, delivery).
  
  
  
  
  Related Information:
  
  
  Material Master Units of Measure:
  
  Base Unit of Measure (mandatory)
  Alternative Units of Measure (optional)
  Sales Unit, Purchase Unit, etc.
  
  
  
  Transactions where this error might occur:
  
  Goods movements (MIGO)
  Delivery creation (VL01N)
  Sales order processing (VA01)
  Purchase order processing (ME21N)
  
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes related to unit of measure issues.
  Refer to SAP Help Portal for material master data and units of measure.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  Quantity unit not maintained for material
  
  
  Cause
  Unit of measure used is not defined in material master
  
  
  Solution
  Maintain the unit of measure in material master (MM02) or correct the unit in the transaction
  
  
  Check
  Material master units of measure, transaction data
  
  
  
  
  If you need help with the exact steps to maintain units of measure or further troubleshooting, feel free to ask!