Just Curious why is only one allowed?
[2017-12-14 14:12:15] Espo.ERROR: API [POST]:/Admin/fieldManager/:scope, Params:Array ( [scope] => Opportunity ) , InputData: {"type":"attachmentMultiple","required":true,"dyna micLogicVisible":null,"dynamicLogicRequired":null, "dynamicLogicReadOnly":null,"label":"Supportin g Documents and Recordings","name":"sdar","tooltipText":"Upload any supporting documentation and Recording files here!","sourceList":[],"tooltip":true} - Attachment-Multiple field already exists in 'Opportunity'. There can be only one Attachment-Multiple field per entity type. [] []
[2017-12-14 14:12:15] Espo.ERROR: Display Error: Attachment-Multiple field already exists in 'Opportunity'. There can be only one Attachment-Multiple field per entity type., Code: 409 URL: /espocrm/api/v1/Admin/fieldManager/Opportunity [] []
[2017-12-14 14:12:15] Espo.ERROR: API [POST]:/Admin/fieldManager/:scope, Params:Array ( [scope] => Opportunity ) , InputData: {"type":"attachmentMultiple","required":true,"dyna micLogicVisible":null,"dynamicLogicRequired":null, "dynamicLogicReadOnly":null,"label":"Supportin g Documents and Recordings","name":"sdar","tooltipText":"Upload any supporting documentation and Recording files here!","sourceList":[],"tooltip":true} - Attachment-Multiple field already exists in 'Opportunity'. There can be only one Attachment-Multiple field per entity type. [] []
[2017-12-14 14:12:15] Espo.ERROR: Display Error: Attachment-Multiple field already exists in 'Opportunity'. There can be only one Attachment-Multiple field per entity type., Code: 409 URL: /espocrm/api/v1/Admin/fieldManager/Opportunity [] []