How To Fix MA303 - Choose ONE resources type

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 303

• Message text: Choose ONE resources type

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MA303 - Choose ONE resources type ?

  The SAP error message MA303 "Choose ONE resource type" typically occurs in the context of Material Requirements Planning (MRP) or production planning when the system expects the user to select a specific resource type but finds that multiple options are available or none are selected.
  Cause:
  
  Multiple Resource Types: The system is configured to allow multiple resource types (e.g., work centers, production lines, etc.), but the user has not specified which one to use.
  Configuration Issues: There may be a configuration issue in the resource planning settings that leads to ambiguity in resource selection.
  User Input Error: The user may have inadvertently skipped the selection of a resource type or made an incorrect selection.
  
  Solution:
  
  Select a Resource Type: When prompted with the error, ensure that you select only one resource type from the available options. This can usually be done in the relevant transaction or screen where the error occurs.
  Check Configuration: If you are an administrator or have access to configuration settings, check the settings for resource types in the relevant module (e.g., Production Planning, MRP). Ensure that the resource types are correctly defined and that there are no conflicting settings.
  Review User Input: If you are a user, double-check your input to ensure that you have made a valid selection. If you are unsure, consult with a colleague or refer to documentation for guidance on the correct resource type to select.
  Consult Documentation: Refer to SAP documentation or help files for specific guidance on the transaction or process you are working with. This can provide insights into the expected inputs and configurations.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to production planning, such as MD01 (MRP Run), CO01 (Create Production Order), or others.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Training: If this error is common among users, consider providing training or documentation to help users understand how to select resource types correctly.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.