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Anonymous
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Server Response ETAG mismatch clientRequestId serviceRequestId

Hi,

 

This issue has only happened since last week. I have two sharepoint lists (lets call them list A and list B) that the app updates. When the users click on button to send email for notification the app updates list B but does not update list A and get the attached error messages. No changes were done to the app and this issue suddenly appeared. I have already tried solutions on the boards like changing the formula First for Lookup, re-connecting to the SP list.

 

I went into Edit mode and only used the code to patch to list and was working ok, so then I told users to start using it again but it keeps coming up with the error attached. The ids change every error message.

 

The frustrating thing is that there are other buttons that update list A and there is no issue with them, it is only this particular code which updates customer names, approval status, approver and value that is not working and hence app can no longer be used.

87 REPLIES 87

 

One work around to mitigate the issue is to add Refresh(DataSourceName) function after your patch or submit.

We are actively investigating this to improve the experience. However, this work around should unblock your app.

 

If you can give us information about expressions that you use in your app, would greatly help us to investigate it faster.

 

 

 

We also found another pattern that can cause this issue:

 

assume that you have an expression that navigates you to next screen: 

Navigate(DetailScreen1, ScreenTransition.None);Set(myitem, BrowseGallery1.Selected)

 

Then on the next page you have a form that has its item set to: myitem

 

In this scenario you would see the ETag issue. Because once you navigate to the next page, we save the value of the selected item to the variable. When you do the first submit, the value and its ETag changes, however, the variable still has the old value. and submit happens against it, not the new value. As a result, server reject it:

 

To solve this issue:

1- Try to avoid using variable in this scenrios. If you just use the dataflow (i.e. use BrowseGallery1.Selected directly instead of using a variable), we will take care of the changes for you.

2- If you need to use the variable, make sure that you set it again after submit form.

 

If you have ETag issue and you are not using this patter, please let us know. 

Thanks 

mr-dang
Community Champion
Community Champion

Thank you for the clarification, @Reza.

 

@Anonymous @SmartMeter @tbrantley @Anonymous and others, can you follow up with us on the results after following Reza's information?

 

Brian

Microsoft Employee
@8bitclassroom

Still getting the same error when editing an item.

 

The error doesn't occur when creating new item.

 

 

Hi @tbrantley,

It looks like you have added Refresh. Are you using a variable to store the selected record or do you set the Form's item directly to what's selected in the gallery?

 

@SmartMeter @Anonymous and others--can you respond with:

  • what you changed: refresh, gallery.selected vs. variable
  • what other expressions you are using around saving the record--how is your form's Item property configured, OnSuccess, OnFailure, etc.
  • what resulted
  • Session ID and version number 

 

Brian

____________________

Microsoft Employee
@8bitclassroom

Thank you so much @Reza and @mr-dang !

No functional changes have been made to this aspect of the app. It has been operational for several months.

The Main form has two galleries. Gallery1 has 2 buttons with "list1" data items. I issue a patch to create a "list2" item in a child list with this code (note refresh of the record that I patch, so gallery 2 refreshes and shows the new child record immediately after it is created. Works like a charm and both lists remain in sync.)

 

Patch(Fini**bleep**,Defaults(Fini**bleep**),{Issue:{'@odata.type':"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedReference",Id:BrowseGallery1.Selected.ID,Value:BrowseGallery1.Selected.Title}},{Title:"Please Assign"},{OData__Status:{'@odata.type':"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedReference",Id:BrowseGallery1.Selected.ID,Value:"Data Collection"}},{TextIssue:BrowseGallery1.Selected.Title});Refresh(Fini**bleep**)

 

Gallery 2 receives the new child record stub, and displays it just fine. (all well at this point.) Gallery 2 has a button for the stubbed out list item which resides as item collection behind G2. The user assigns it to a person and notates the work ticket. A gallery 2 button simply grabs the currency of the record and navigates to an edit (screen2) with this simple code:
Navigate(EditScreen2, ScreenTransition.None)


When you modify the list item on EditScreen2, sometimes the submit works just fine, but very often when you submit it (with generated code in the upper right "check" box) Bam! you receive the ETAG error. See screenshots below.

 

PatchCommand.png

 

This is the session id and ETAG error I receive:

patchcommand2.png

 

Please keep in mind this app was made several months ago, and I recently added code to allow the FIRST attachment of the primary list gallery to store an image attachment. This code seems to be a coincidence with the error, and since the error happens on the EDIT form, which has no image management on the list, when you simply SUBMIT the form data it errors out. I do not believe it has anything to do with the recent attachment management code. 

Thank you so much for assisting with this issue!

Glad to help test this with you,  

@SmartMeter

 

 

How funny, you bleeped my list names! They are named FINISH IT  as in, to finish a generic work task named "IT"

 

 

@SmartMeter Thanks for taking the time and posting this. It is very helpful. Some questions:

  • What is the expression for your 2 galleries’ item property?
  • What is the expression for your form item property?
  • Why are you using Patch instead of Collect function?

 

Thank you for the fast response @Reza , 

Gallery1 Items collection:

SortByColumns(Filter(FixIt, Completed = "false"), "Created", If(SortDescending1, Ascending, Descending))


Gallery2 items collection:

SortByColumns(Filter(Finish It, TextIssue = BrowseGallery1.Selected.Title ), "Created", If(SortDescending1, Ascending, Descending))

 

Edit screen2 "Form item property" is the same list name as gallery2: Finish It    (with no filtering or sorting)

The edit form always displays the proper record, and this app worked for months in prod before some update introduced the ETAG issue. 

 

I didn't use a collect, since this is not "transient table data." I am working with two SharePoint online list objects, the second being a linked list based on a lookup of the first parent list item. This implements a parent child list where each work ticket can have multiple people assigned to various aspects of the work, and each child list object "record" can have independent notes, assignments, etc. This is persistent data for facility workers. They have a final "simple" app to mark each task "completed" and the aggregate date timestamps paint a statistical picture of the operational efficiency of the team members. Collect, as I understand is a temporary tabular data structure to use within the app,l similar to a global variable table, but I want persisted data with parent child relations managed by this app, since several people use it, and the data is discretely persisted for team updates to the child rows.

 

Glad to help as needed, I really need this working by next week. I am delighted that this is helpful, since I am quite invested in this software, and I need to make MANY apps since our utility customers are quite pleased with the app paradigm. It seems SQL has trigger and procedure or function invocation "issues" but with SP in the cloud, the data currency (guid confusion?) is the primary issue I have had recently. 

Thanks again @Reza

@mr-dang

 

I'm setting the edit item to BrowseGallery1.Selected

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