Message type: E = Error
Message class: WG - Messages for store order and investment buy
Message number: 338
Message text: Unknown material group used for selection. Please re-enter material group
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WG338
- Unknown material group used for selection. Please re-enter material group ?SAP Error Message: WG338 - Unknown material group used for selection. Please re-enter material group.
Cause: This error occurs when a user tries to select or enter a material group in a selection screen or transaction, but the material group entered does not exist or is not recognized in the system. The system validates the material group against the master data, and if it cannot find a matching material group, it throws this error. Common reasons include: Typing errors or incorrect material group code. The material group has not been created or maintained in the system. The material group is inactive or deleted. The user is trying to use a material group that belongs to a different plant or company code context where it is not valid.
Solution: Check the Material Group Code: Verify the material group code entered is correct. Use the search help (F4) on the material group field to select a valid material group. Verify Material Group Master Data: Go to
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