Message type: E = Error
Message class:  MMRP01 - Rapid Planning Matrix 
Message number: 090
Message text: Color node has no (valid) color variant
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The SAP error message MMRP01090, which states "Color node has no (valid) color variant," typically occurs in the context of material management and variant configuration in SAP. This error indicates that a specific color node in a configurable material does not have an associated valid color variant. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Missing Color Variant: The color node in the material's configuration does not have a valid color variant assigned to it. This can happen if the variant configuration is not set up correctly. Incorrect Configuration: The configuration settings for the material may not have been properly defined, leading to a mismatch between the color node and its variants. Data Inconsistency: There may be inconsistencies in the master data or configuration data that prevent the system from recognizing the valid color variants. Inactive or Deleted Variants: The color variant may have been marked as inactive or deleted, which
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