How To Fix PN137 - Impermissible entry

SAP Error Message - Details

• Message type: E = Error

• Message class: PN -

• Message number: 137

• Message text: Impermissible entry

What causes this issue?

You may only make an entry in the <LS>GenPC</> field for infotypes
2001 and 2002.

System Response

The system deletes your entries in this field.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PN137 - Impermissible entry ?

  The SAP error message PN137 "Impermissible entry" typically occurs in the context of data entry in SAP, particularly when dealing with fields that have specific validation rules or constraints. This error can arise in various modules, such as Materials Management (MM), Sales and Distribution (SD), or Human Capital Management (HCM), depending on the context of the transaction.
  Causes of PN137 Error
  
  
  Invalid Data Entry: The most common cause is that the data entered does not conform to the expected format or value range. For example, entering a non-numeric value in a numeric field or an invalid code in a dropdown list.
  
  
  Configuration Issues: Sometimes, the error can be due to configuration settings in the system that restrict certain entries. This could be related to field settings, validation rules, or user authorizations.
  
  
  Missing Master Data: If the entry is related to a master data record (like a material, vendor, or customer), and that record is missing or not properly configured, it can lead to this error.
  
  
  Field Dependencies: Certain fields may have dependencies on other fields. If the dependent field is not filled out correctly, it can trigger this error.
  
  
  Solutions to PN137 Error
  
  
  Check Data Entry: Review the data you are trying to enter. Ensure that it matches the expected format and adheres to any predefined value ranges. 
  
  
  Review Configuration: If you have access, check the configuration settings related to the transaction you are performing. Look for any validation rules that might be causing the error.
  
  
  Verify Master Data: Ensure that all necessary master data is created and correctly configured. For example, if you are entering a material number, make sure that the material exists in the system.
  
  
  Consult Documentation: Refer to SAP documentation or help files related to the specific transaction or module you are working with. This can provide insights into what values are permissible.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more specific guidance based on your system configuration.
  
  
  Related Information
  
  Transaction Codes: The error may occur in various transaction codes depending on the context (e.g., ME21N for purchase orders, VA01 for sales orders).
  SAP Notes: Check SAP Notes for any known issues or patches related to the PN137 error. SAP frequently updates its knowledge base with solutions for common errors.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the action. Sometimes, lack of permissions can lead to unexpected errors.
  
  By following these steps, you should be able to identify the cause of the PN137 error and take appropriate action to resolve it.