---
title: "Error when adding a multiple entity"
url: "https://openforis.support/questions/2718/error-when-adding-a-multiple-entity"
tags: ["collect"]
status: "answered"
score: 0
answer_count: 1
asked: "2020-03-05T16:08:07"
last_activity: "2020-03-06T14:26:19"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# Error when adding a multiple entity

Asked by Sabrina on 2020-03-05

Hi all

The sampling unit in my survey is "plot". When I add a multiple entity (form layout) I get the following error message:  
 - Layout not supported: check the layout of other multiple entities within the same tab.  

When I click on a existing multiple entity with form layout the following message appears:  
 - layoutType: Layout not supported: check the layout of other multiple entities within the same tab

So, how can I add a multiple entity with form layout?

My second issue is: Three deadwood transects are to be measured on each plot. On each transect there may be several pieces of deadwood.  

How to organise that in Collect?

Recently I had the same problem. See my [post][1]. But I don't really unserstand the funcion of "tab".

Many thanks!


  [1]: http://www.openforis.org/support/questions/2659/multiple-1m-entities


## Answer (score 0, by Lauri (OF) on 2020-03-06)

Link: https://openforis.support/questions/2718/error-when-adding-a-multiple-entity/2719

Dear Sabrina,

please take a look the two Collect templates provided at [http://www.openforis.org/materials.html][1]
where there are form layouts as well as table types applied for entities. 

Template 1 contains several tabs and entities, and you can get ideas how to build a good survey. If you plan to do a new survey from scratch, always add a tab before a new entity! If you do not add it, you may get a very messy user-interface for your survey.

The best practice is to take a template, modify and test it. 

Hope this helps, Lauri

  [1]: http://www.openforis.org/materials.html