How To Fix RP309 - Number will be suggested

RP309 - Overview

• Message type: E = Error

• Message class: RP - Error Messages for Infotype Module Pools

• Message number: 309

• Message text: Number will be suggested

Example
The "Family/Related Person" infotype (0021) is arranged into subtypes,
for example:
Spouse
Child
Guardian
Individual subtypes are assigned time constraint 2, so you can create
an independent history for each subtype
If you want to enter several children, you must use time constraint 3
as the data records of individual children would overlap. By entering
an object ID (=number in error message), you can create a history for
each child. The object ID in the Child subtype is given a Child number.

Error message extract from SAP system. Copyright SAP SE.

RP309 - Details

• The SAP error message RP309 ("Number will be suggested") typically occurs in the context of payroll processing when the system is unable to generate a specific number for a payroll-related document, such as a payroll run or a payslip. This message indicates that the system will suggest a number instead of using a predefined or expected one.
  
  Cause:
  
  Number Range Issues: The most common cause of this error is that the number range for the relevant payroll document has not been defined or has been exhausted.
  Configuration Errors: There may be configuration issues in the payroll settings or number range settings in the SAP system.
  Missing Authorizations: Sometimes, the user may not have the necessary authorizations to access or modify the number ranges.
  System Settings: The system may be set to suggest numbers instead of using a specific range due to certain settings in the configuration.
  
  
  Solution:
  
  
  Check Number Ranges:
  
  Go to the transaction code SNRO (Number Range