diff --git a/src/config/constants.js b/src/config/constants.js
index 93382ec1c..0c85a21a6 100644
--- a/src/config/constants.js
+++ b/src/config/constants.js
@@ -1224,3 +1224,8 @@ export const MILESTONE_DEFAULT_VALUES = {
 export const PHASE_PRODUCT_TEMPLATE_ID = process.env.PHASE_PRODUCT_TEMPLATE_ID
 
 export const DEFAULT_NDA_UUID = process.env.DEFAULT_NDA_UUID
+
+/**
+ * The minimal duration of a TaaS Job in weeks
+ */
+export const TAAS_MIN_JOB_DURATION = 4
\ No newline at end of file
diff --git a/src/projects/detail/components/JobPickerRow/JobPickerRow.jsx b/src/projects/detail/components/JobPickerRow/JobPickerRow.jsx
index 848e26938..4f8fd96d2 100644
--- a/src/projects/detail/components/JobPickerRow/JobPickerRow.jsx
+++ b/src/projects/detail/components/JobPickerRow/JobPickerRow.jsx
@@ -10,6 +10,7 @@ import SelectDropdown from 'appirio-tech-react-components/components/SelectDropd
 import DescriptionField from '../DescriptionField'
 
 import styles from './JobPickerRow.scss'
+import { TAAS_MIN_JOB_DURATION } from '../../../../config/constants'
 
 const always = () => true
 const never = () => false
@@ -102,7 +103,7 @@ class JobPickerRow extends React.PureComponent {
 
   render() {
     const { value, rowIndex } = this.props
-    const isRowIncomplete = value.title.trim().length > 0 || value.people > 0 || value.duration > 0 || (value.skills && value.skills.length)
+    const isRowIncomplete = value.title.trim().length > 0 || value.people > 0 || value.duration >= TAAS_MIN_JOB_DURATION || (value.skills && value.skills.length)
       ||(value.role && value.role.value !== null) ||(value.workLoad && value.workLoad.value !== null) || (value.description.trim().length >  0)
 
     /* Different columns are defined here and used in componsing mobile/desktop views below */
@@ -164,12 +165,14 @@ class JobPickerRow extends React.PureComponent {
         </label>
         <PositiveNumberInput
           styleName="noMargin"
-          className={cn('tc-file-field__inputs', {error: isRowIncomplete && value.duration <= 0 })}
+          className={cn('tc-file-field__inputs', {error: isRowIncomplete && value.duration < TAAS_MIN_JOB_DURATION })}
           max={MAX_NUMBER}
+          min={TAAS_MIN_JOB_DURATION}
           value={value.duration || ''}
           onChange={this.handleDurationChange}
           onBlur={this.resetDuration}
         />
+        {isRowIncomplete && value.duration < TAAS_MIN_JOB_DURATION ? <p className="error-message">Please, choose at least {TAAS_MIN_JOB_DURATION} weeks</p> : null}
       </div>
     )
 
diff --git a/src/projects/detail/components/JobsPickerQuestion/JobsPickerQuestion.jsx b/src/projects/detail/components/JobsPickerQuestion/JobsPickerQuestion.jsx
index bdcf09fe5..e3f7580ff 100644
--- a/src/projects/detail/components/JobsPickerQuestion/JobsPickerQuestion.jsx
+++ b/src/projects/detail/components/JobsPickerQuestion/JobsPickerQuestion.jsx
@@ -5,6 +5,7 @@ import cn from 'classnames'
 
 import JobPickerRow from '../JobPickerRow/JobPickerRow.jsx'
 import './JobsPickerQuestion.scss'
+import { TAAS_MIN_JOB_DURATION } from '../../../../config/constants.js'
 
 class JobsPickerQuestion extends Component {
 
@@ -19,7 +20,7 @@ class JobsPickerQuestion extends Component {
     this.setValidator(props)
 
     const { getValue } = props
-    let values = getValue() 
+    let values = getValue()
     if (values) {
       values = _.map(values, (v) => {
         return {
@@ -33,7 +34,7 @@ class JobsPickerQuestion extends Component {
     }
 
     this.state = {
-      values 
+      values
     }
   }
 
@@ -49,13 +50,13 @@ class JobsPickerQuestion extends Component {
           return true
         }
         return _.some(value, (v) => {
-          return v.title.trim().length  && v.people !== '0' && v.duration !== '0' && v.skills.length > 0 && v.workLoad.value !== null && v.role.value !== null && v.description.trim().length
+          return v.title.trim().length  && v.people !== '0' && parseInt(v.duration, 10) >= TAAS_MIN_JOB_DURATION && v.skills.length > 0 && v.workLoad.value !== null && v.role.value !== null && v.description.trim().length
         }) // validation body
       },
       noPartialFillsExist: (formValues, value) => {
         return _.every(value, v => {
-          const isAllValuesFilled = v.title.trim().length > 0 && v.people > 0 && v.duration > 0 && v.skills && v.skills.length && v.description.trim().length && v.workLoad.value !== null && v.role.value !== null
-          return isAllValuesFilled 
+          const isAllValuesFilled = v.title.trim().length > 0 && v.people > 0 && v.duration >= TAAS_MIN_JOB_DURATION && v.skills && v.skills.length && v.description.trim().length && v.workLoad.value !== null && v.role.value !== null
+          return isAllValuesFilled
         })
       }
     }