How To Fix ME596 - Reloading of schedule lines not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 596

• Message text: Reloading of schedule lines not possible

What causes this issue?

The table of scheduling agreement delivery schedule lines contains so
many such lines that reloading individual records from the history
table would cause an overflow.

How to fix this error?

If you have previously aggregated on a monthly basis, aggregate on a
yearly basis. If you have already aggregated on a yearly basis, create
a new scheduling agreement for this item.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ME596 - Reloading of schedule lines not possible ?

  The SAP error message ME596 ("Reloading of schedule lines not possible") typically occurs in the context of materials management and procurement processes, particularly when dealing with purchase orders and schedule lines. This error indicates that the system is unable to reload or update the schedule lines for a particular purchase order item.
  Causes:
  
  Inconsistent Data: There may be inconsistencies in the data related to the purchase order or schedule lines, such as missing or incorrect information.
  Locked Purchase Order: The purchase order might be locked for editing by another user or process, preventing any changes to the schedule lines.
  Delivery Date Issues: The delivery dates for the schedule lines may not be valid or may conflict with existing entries.
  Incomplete Configuration: There may be issues with the configuration of the material master or vendor master data that affect the schedule line processing.
  Status of the Purchase Order: The purchase order may be in a status that does not allow for changes to the schedule lines (e.g., completed or closed).
  
  Solutions:
  
  Check Data Consistency: Review the purchase order and its associated schedule lines for any inconsistencies or missing data. Ensure that all required fields are filled out correctly.
  Unlock the Purchase Order: If the purchase order is locked, check with your team to see if another user is editing it. If necessary, unlock the purchase order or wait until the other user has finished.
  Review Delivery Dates: Ensure that the delivery dates for the schedule lines are valid and do not conflict with existing entries. Adjust the dates if necessary.
  Configuration Review: Check the configuration settings for the material master and vendor master data to ensure they are set up correctly for schedule line processing.
  Change Purchase Order Status: If the purchase order is in a status that prevents changes, consider changing its status if appropriate (e.g., if it is still open and can be modified).
  Consult SAP Notes: Look for any relevant SAP Notes or documentation that may address this specific error message. SAP frequently updates its knowledge base with solutions for common issues.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as ME22N (Change Purchase Order) or ME23N (Display Purchase Order) to investigate the purchase order and its schedule lines.
  Debugging: If you have access to debugging tools, you can analyze the program logic to identify the exact point of failure.
  SAP Support: If the issue persists, consider reaching out to SAP support or your internal SAP helpdesk for further assistance.
  
  By following these steps, you should be able to identify the cause of the ME596 error and implement a solution to resolve it.