How to approve a pending request via the AppServer API

Question

Hi, 
 I am currently working on a project that requires an iOS app to talk to the D1IM API. 
 This is working perfectly and I can pull out the information I need and present it in the app. 
 However I am having trouble on how to approve a pending request via the api. Having looked into this for quite some time some suggestions were to call MakeDecision method on the PersonWantsOrg record. I have tried calling the MakeDecision method on the specific PersonWantsOrg record. This gives me a MakeDecision method not found. 
 Is there a specific script I can call via the API that will approve this pending request? I am quite lost as to where to look next. 
 Thanks again, 
 
 Ash

Markus Weiss-Ehlers · Accepted Answer

If you are using a normal user, role-based or not is irrelevant, the user needs to have a program function assigned called Common_StartCustomizerMethods . 
 These program function can be assigned to permission groups and you just need to ensure, that your logged in user is a member of a permission group with that program function assigned. 
 For role-based groups that means that your person has to assigned to an application role, where a permission group is assigned that grants the person access to the program function mentioned.