---
title: "Error message because of Sampling Point Data level_1?"
url: "https://openforis.support/questions/2710/error-message-because-of-sampling-point-data-level_1"
tags: ["collect"]
status: "answered"
score: 0
answer_count: 1
asked: "2020-03-02T11:47:36"
last_activity: "2020-03-05T09:32:43"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# Error message because of Sampling Point Data level_1?

Asked by Sabrina on 2020-03-02

Hi all  

My Survey contains Sampling Point Data. The codes of the first column (level_1) contain letters and numbers (eg. A09). When I try out the Survey in the Preview Mode I get the following error message:  
"For input string: "A09""  
"faultCode="java.lang.NumberFormatException"  
Also Collect Mobile crashes.  
Occurs this error message because of the Codes?

Thanks for any help!


## Answer (score 0, by Sabrina on 2020-03-05)

Link: https://openforis.support/questions/2710/error-message-because-of-sampling-point-data-level_1/2715

If the codes of level_1 are alphanumeric, all attributes that are related to this column must be defined as text attributes.