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• Search → 155101

• Create → 155102

• Update → 155103

• Delete → 155104

• Amend (create amendment) → 152109155109

Invoice Payment prefix will be 1552

• Search → 155201

• Create → 155202

• Update → 155203

• Delete → 155204

• Refund→ 155206

Invoice event, prefix will be 1553

• Search → 155201155301

• Create → 155202 155302 (out of scope)

• Update → 155203155303(out of scope)

• Delete → 155204155304(out of scope)

• CreateMessage → 155206155306

• DeleteMyMessage → 155207155307

• DeleteAllMessage → 155207155308

Front end

The front end will have the same layout as the contract

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