How To Fix /SAPAPO/CDPSOPT155 - Relationship between order &1 and &2 ignored because it causes a cycle

/SAPAPO/CDPSOPT155 - Overview

• Message type: E = Error

• Message class: /SAPAPO/CDPSOPT -

• Message number: 155

• Message text: Relationship between order &1 and &2 ignored because it causes a cycle

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSOPT155 - Relationship between order &1 and &2 ignored because it causes a cycle ?

  The SAP error message /SAPAPO/CDPSOPT155 indicates that there is a cyclic dependency between two orders in the Advanced Planning and Optimization (APO) module. This typically occurs when the scheduling or planning logic tries to establish a relationship between two orders that would create a loop, making it impossible to determine a valid sequence of execution.
  
  Cause:
  
  Cyclic Dependencies: The most common cause of this error is that the two orders (e.g., production orders, purchase orders) are set up in such a way that one order depends on the other, and vice versa. This creates a cycle that the system cannot resolve.
  Incorrect Order Relationships: The relationships defined between the orders (like predecessor/successor relationships) may be incorrectly configured, leading to a situation where the system cannot determine a valid order of execution.
  Planning Parameters: Certain planning parameters or settings may inadvertently lead to cyclic dependencies, especially if they are not aligned with the actual production