The remote server returned an error: (429).

Question

Hello! I have 3 services in my company. All services work with one service account and sometime I catch error:
The remote server returned an error: (429). Stack: at System.Net.HttpWebRequest.GetResponse() at Microsoft.SharePoint.Client.SPWebRequestExecutor.Execute() at Microsoft.SharePoint.Client.ClientRequest.ExecuteQueryToServer(ChunkStringBuilder sb) at Microsoft.SharePoint.Client.ClientContext.ExecuteQuery() at DD.ProjectApproval.Model.SPListItemExtensions.GetFieldUserValueNew(ListItem item, String fieldName, ClientContext clientContext).
I read microsoft recomendations, but I undurstend about
e.WebRequestExecutor.WebRequest.UserAgent = "NONISV|Contoso|GovernanceCheck/1.0";
GovernanceCheck - Enterprice app name, Do I only have to register new app in Enterprice App or need to configure it else?
Contoso -name of Company, where I can find name in Azure?

1. 0 -versions of app, where I can find versions?
   And I read about "ExecuteQueryWithIncrementalRetry extension method", Is method better tnan ExecuteQueryRetry in OfficeDevPnP.Core, Version=2.24.1803.0?
   Thanks!

Answer 1

e.WebRequestExecutor.WebRequest.UserAgent = "NONISV|digdes|yourapp/1.0";

Answer 2

@Jerryzy-MSFT thanks. Do I have to register the app in Azure AD or it optional? I read

Answer 3

@Nerobov Andrey ,

This is optional, if you want to use App-Only credential for avoiding MFA issue, then it's suggest to register Azure AD App.

Answer 4

@Jerryzy-MSFT thank you, I'll try and write later