Based on the field validation I need to display an error message accordingly by using single validation rule is defined on particular field.
Let's say.. 1. when Amount field​ is entered as '0' then I should display an error message 'Amount should not be Zerio'.
2. When Amount field is entered with Negative values then I should display an error message 'Amount should not be less than Zero'".
I need to handle this scenario by writing single validation rule on this field with multiple error ​​messages and should display at a time one error message If that particular condition is satisfied. Please suggest me with your probable answers.

Here is the link to get the sample data for Recruitment application (RecuritingApp-7_0.zip)
https://developer.salesforce.com/page/File:RecruitingApp-9_0.zip
 

Based on the field validation I need to display an error message accordingly by using single validation rule is defined on particular field.
Let's say.. 1. when Amount field​ is entered as '0' then I should display an error message 'Amount should not be Zerio'.
2. When Amount field is entered with Negative values then I should display an error message 'Amount should not be less than Zero'".
I need to handle this scenario by writing single validation rule on this field with multiple error ​​messages and should display at a time one error message If that particular condition is satisfied. Please suggest me with your probable answers.

Here is the link to get the sample data for Recruitment application (RecuritingApp-7_0.zip)
https://developer.salesforce.com/page/File:RecruitingApp-9_0.zip